Drilling-machine



' (No Model.) 2 Sheets-Shget 1.

W. W. FLIGKINGER.

DRILLING MACHINE.

No. 595;850. Patented DeG.-21, 1897.

...llllll!llHlil (No Model.) 2 Sheets-Sheet 2..

W. W. PLIOKINGER.

DRILLING MACHINE. No. 595,850. Patented Dec. 21,1897.

W 7366865; I @fgw fig UNITED STATES PATENT flrrrcn,

WVILLIAM \V. FLIGKINGER, OF COCHRANTON, PENNSYLVANIA.

DRILLING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 595,850, dated December21, 1897.

Application filed December 14,1896. SerialNo.615,651. (to model.)

To all whom it may concern.-

Be it known that I, WILLIAM W. FLICKIN- GER, a citizen of the UnitedStates, residing at Coohranton, in the county of Crawford, State ofPennsylvania, have invented certain new and useful Improvements inDrilling- Machines, of which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to certain new and useful improvements indrilling-machines; and it has for its objects, among others, to providea simple and cheap construction whereby the feed-lever is so arrangedand connected that it will not only start the spin dle, but will feeddown the drill-spindle and serve to increase or diminish the speedthereof, the latter operation being done at any time while the machineis running and feeding and with the lever in anyposition. The same levermay be made to stop the drill every time the spindle is raised, so thatwhen the drill is not in use the spindle will not be running. But onehand is required to operate the machine for the desired ends and alldone with the one and the same lever. The parts are few in number andthose readily assembled, compactly arranged, not liable to get out oforder, and in practice most efflcient for the purposes for which theyare intended.

Other objects and advantages of the invention will hereinafter appear inthe following description, and the novel features thereof will beparticularly pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawings,which, with the letters of reference marked thereon, form a part of thisspecification, and in which Figure 1 is a side elevation of the machinecomplete, with a portion broken away. Fig. 2 is an end elevation, theparts in section and a portion broken away; and Fig. 3 is a front viewshowing the connection of the lever to the friction-Wheel, with aportion broken away.

Like letters of reference indicate like parts throughout the severalviews.

Referring now to the details of the drawings by letter, A. designatesthe base, and A the suppoi'tingcolumn.

B is an arm sleeved upon the supportingcolumn A, and this may bevertically adj usted thereon in any of the well-known ways, and at itsouter end supports the platen B, which may be adjusted up and down inthe usual way.

C is a collar secured to the 'upper end of the supporting-column and inturn supporting the frame 0, in the vertical arms 0 of which, insuitable bearings c, is supported the horizontal shaft D, upon which isfast the belt-pulley D, around which is designed to pass the belt (notshown) connected with any suitable source of power.

E is a. pulley on the shaft D, having about its periphery aband e of anysuitable material 'to increase the friction, this pulley being thefriction-pulley adapted to revolve in engagement with the friction-diskon the drill-spindle, and this pulley is so mounted upon its shaft as torotate therewith and yet permit of movement thereof lengthwise of theshaft, the construction in this instance being shown as the well-knownkey-seat and spline, so that while the pulley is movable endwise on theshaft the two must rotate together. The hub of this pulley has a bossE,provided with an annular groove, in which is seated the ring e,securedto the rod E arranged parallel with the shaft D and working through anopening in the overhanging arm 0 of they frame, as shown. Its other endis pivotally connected, as at f, with the link F, the other end of whichis pivotally connected, as at f, with one arm of the bell-crank lever Fpivotally mounted, as at f on the frame, and its other arm pivotallyconnected, as at f with the upper end of the rod G, the lower end ofwhich is pivotally connected, as at g, with the crank-arm G,fast on theshaft G supported in suitable bearings g on the horizontal portion (1 ofthe frame. G is an arm extending from the outer end of said shaft, andto the upper end of this arm is connected a link G, the other end ofwhich is pivotally connected, as at g, with the band or ring G, thatworks in a groove in the sleeve or collar G which is adapted to slideupon its shaft H, being connected with the operating -lever I by thelink 2', pivotally connected to said lever, as at i, and to said sleeveor collar, as at 2' all as clearly shown in Figs. 2 and 3.

J is the drill-spindle, being disposed vertically, as shown, andsupported in the quill J and the sleeve J the former working in thetubular vertical portion J 3 of the frame and the latter in the tubularvertical portion J of the frame, the spindle being provided with akey-seat or groove j, in which is e11- gaged a feather 011 the sleeve Jwhich allows the spindle to slide up and down, while the sleeve rotatesin its bearing in the tubular portion J of the frame. On the spindle isa friction-disk K, adapted to engage with the friction-wheel E, andthrough the medium of the same rotary movement is givento the spindle,the said disk having a hub or sleeve k, which is also connected to thespindle, so as to rotate therewith, but to have endwise movementthereon, or to allow endwise movement of the spindle within the hubportion thereof.

Lisa wheel preferably having its periphery milled or roughened andhaving a screwthreaded portion L screw-threaded into the hub of thedisk, as shown, and by adjustment of this wheel L the friction may beregulated to give the proper friction on the disk, a spring L beingarranged between the upper end of this wheel and the lower edge of thesleeve J this spring acting also as a cushion and pressing upon both thewheel L and the sleeve J both of which rotate with the spindle, thuscausing no friction except at the points where needed.

The quill J carries a rack M, that is designed to be engaged by a pinionM on the shaft H, which shaft has a slot at its outer end to admit theoperating-lever I, which is fastened by one bolt m, which forms a hingeor joint and which gives to it a right or left movement. The rod or linki, which connects this lever with the sliding sleeve G above described,gives the necessary movement to said sleeve, and the sleeve or collarbeing grooved, as shown, to admit the strap or band G permits the shaftto turn freely without interfering with the strap.

N is a spring on the end of the pinion-shaft held between the frame andan adjustable collar or nut N and is designed to co unterbalanee thespindle.

Projecting from the spindle just below the friction-disk K is a lug orpin 0, as seen in Fig. 1, and which is designed to be thrown intocontact with the bottom end of the hub of the disk to lift the same outof engagement with the friction'wheel E.

The turning of the shaft H by means of the lever gives to the spindle avertical movement, which is done by pulling thejsaid lever down or upfor feeding the drill. By moving the lever to the right the sleeve Gwill slide out on the shaft H, and by means of the connections shown anddescribed it will cause the shaft to turn downward. The arm G will pulldown on the rod G, connected with the bell-crank lever, and this by itsconnections will shift the friction-wheel E on the shaft 1) near to thecenter of the frictiondisk, thus increasing the speed of the spindle.The speed of the spindle will of course be diminished by reversemovement of the lever,which moves the friction-wheel E nearer theperiphery or outer edge of the frictiondisk. Vhen the operating-lever ispushed to the position indicated by dotted line in Fig. 1, the pinion Mwill be turned and by its engagement with the rack M on the quill J thepin 0 will strike the under side of the collar of the disk and raise itslightly, so as to disengage it from the friction-wheel E, allowing theshaft D to revolve freely in its bearings without imparting movement tothe spindle.

Modifications in detail may he resorted to without departing from thespirit of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The combination with the drill-spindle and its rotating mechanism, ofa lever, means connected therewith for starting and feeding the spindle,and means connected with said lever for increasing or diminishing thespeed of said rotating mechanism, substantially as described. i

2. The combination with the, drill-spindle and its rotating mechanism,of a single lever and connections substantially as described constructedand arranged to start, feed and stop said spindle and increase ordiminish its speed; substantially as described.

3. The combination with the drill-spindle and friction devices forrotating the same, of a single lever and interposed pivotal connectionssubstantially as described between said lever and one of the elements ofthe friction driving mechanism, whereby the single lever serves to stop,start and feed the spindle, and connections between said lever and thefriction driving mechanism to regulate the speed thereof; substantiallyas described.

4. The combination with the drill-spindle and the friction-disk mountedthereon for rotary movement therewith and for movement lengthwise of thespindle, of the frictionwheel mounted for rotation with and endwisemovement upon its shaft, a pivotally-mounted bell-crank lever, anoperating-lever connected therewith, and a connection between thebell-crank lever and thehub of the friction-pulley; substantially asdescribed.

5. The combination with the drill-spindle and the friction-disk mountedthereon for rotary movement therewith and for movement lengthwise of thespindle, of the frictionwheel mounted for rotation with and endwisemovement upon its shaft, a pivotally-mounted bell-crank lever, anoperating-lever connected therewith, a connection between the bell-cranklever and the hub of the frictionpulley, and a pinion on the shaft ofsaid opcrating-lever, and a quill around the drillspindle having a rackportion engaging said pinion; substantially as described.

IIS

move radially to the axis of said disk, of a' projection on the spindleadapted to engage the hub of the friction-disk to move the same awayfrom the friction-wheel, and means for increasing the friction betweensaid disk and Wheel; substantially as described.

- 8. The combination with the drill-spindle and the friction-disk andits hub, and a cooperating friction-wheel adapted to move radially tothe axis of said disk, of a collar having a threaded portion engaged bysaid hub, a sleeve supported in the frame and through which thedrill-spindle passes, and a spring around the spindle between saidcollar and sleeve; substantially as described.

9. The combination with the drill-spindle and the friction-disk and itshub, of a collar having a threaded portion engaged by said hub, a sleevesupported in the frame and through which the drill spindle passes, aspring around the spindle between said collar and sleeve, andaprojection on the drill-spindle adapted to engage the under side of thehub of the friction-disk; substantially as described.

10. The combination with the sliding collar G and the strap disposed inan annular groove thereof, of the operating-lever connected with saidcollar, the friction-Wheel mounted for endwise movement on its shaft,the bell-crank lever and connections between the said slid; ing collarand the bell-crank lever and between the bell-crank lever and the hub ofthe friction-wheel substantially as described.

11. The combination with the sliding collar G and the strap disposed inan annular groove thereof, of the operating-lever connected with saidcollar, the friction-wheel mounted for endwise movement on its shaft,the bell-cranklever connections between the said sliding collar and thebell-crank lever and between the bell-crank lever and the hub of thefriction-Wheel, and a pinion on the shaft of the sliding collar, and asleeve having a rack portion to engage said pinion; substantially asdescribed.

12. The combination with the friction-Wheel mounted for endwise movementon its shaft, of the sliding collar G, its shaft, the operating-leverconnected with the collar, the bellcrank lever connected with thesliding collar by an interposed pivotal and rocking connection, and aconnection between the bell-crank lever and the hub of thefriction-wheel; substantially as described 13. The combination with thefriction-wheel mounted for endwise movement on its shaft, of the slidingcollar G its shaft, the operating-lever connected with the collar, thebellcrank lever connected with the sliding collar, a-connection betweenthe bell-crank lever and the hub of the friction-wheel, and a spring onthe shaft of the sliding collar to counterbalance the drill-spindle;substantially as described.

14. The combination with the friction-wheel mounted for endwise movementon its shaft, of the sliding collar, its shaft, the operating leverconnected with the collar, the bell-crank lever connected with thesliding collar, a connection between the bell-crank lever and the hub ofthe friction-wheel, and a spring on the shaft of the sliding collar tocounterbalance the drill-spindle the said shaft having a slot, in whichthe end of the operating-lever is received and pivoted; substantially asdescribed.

In testimony Whereof I affix my signature in presence of'two witnesses.

WILLIAM W. FLIOKINGER.

Witnesses:

FRANK M. FLEMING, FRANK FLOWER.

